import matplotlib.pyplot as plt
x = [5,7,8,7,2,17,2,9,4,11,12,9,6]
y = [99,86,87,88,111,86,103,87,94,78,77,85,86]

plt.scatter(x, y)

import scipy.stats as stats
slope,intercept,r,p,std_err=stats.linregress(x,y)

def myfunc(x):
	return slope*x+intercept

mymodel=list(map(myfunc,x))

plt.plot(x,mymodel)
plt.show()

print("拟合度",r)